Reasoning Quiz On Series

1.  _aa_a_baaa_b

a) baba

b) bbaa

c) baab

d) babb

2.  r_mmar_am_arr_ _mar

a) ramma

b) mramr

c) armam

d) aramr

3.  aab_aa_bbb_aaa_bbb

a) abba

b) baab

c) aaab

d) abab

4.  nmmn_mmnn_mnnm_ _

a) nnmm

b) nmnm

c) mnnm

d) nmmn

5.  abb_accaa_baa_caab_a

a) accb

b) abac

c) accc

d) abcb

6. 11, 13, 17, 19, 23, 29, 31, 37, 41, (....)

a)  43           

b)  47

c)  53          

d)  51

7.  8, 24, 12, 36, 18, 54, (....)

a. 27          

b.108

c. 68          

d. 72

8.  2, 6, 12, 20, 30, 42, 56, (....)

a. 61          

b. 64

c. 72          

d. 70

9.  4, -8, 16, -32, 64, (....)

a. 128        

b. -128

c.  192        

d.  -192

10.   7, 26, 63, 124, 215, 342, (....)

a. 481        

b. 511

c. 391        

d. 421

Answers With Explanation:-

1- ( A)

2- (C),

3- (B),

4- (D),

5- (D).

6.  A

Explanation:

Numbers are all primes. The next prime is 43.

7. A

Explanation:

Numbers are alternatively multiplied by 3 and divided by 2.

So, the next number = 54 ÷ 2 = 27.

8. C

Explanation:

The pattern is 1 x 2, 2 x 3, 3 x 4, 4 x 5, 5 x 6, 6 x 7, 7 x 8.

So, the next number is 8 x 9 = 72.

9. B

Explanation:

Each number is the proceeding number multiplied by -2.

So, the required number is -128.

10. B

Explanation:

Numbers are (2^3 - 1), (3^3  - 1), (4^3  - 1), (5^3  - 1), (6^3  - 1), (7^3  - 1) etc.

So, the next number is (8^3  - 1) = (512 - 1) = 511.